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106 Dione (A868 TA)
Classification: Main-belt Asteroid          SPK-ID: 2000106
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593612723680759 1.6727e-08  
a 3.179849971275433 9.6589e-09 au
q 2.67310503391339 5.341e-08 au
i 4.576084678940544 5.3135e-07 deg
node 62.00649179633334 4.6313e-06 deg
peri 331.1701654342147 9.8878e-06 deg
M 327.8678973574577 7.0227e-06 deg
tp 2459385.360880252773
(2021-Jun-19.86088025)
4.0466e-05 TDB
period 2071.134828347255
5.67
9.4367e-06
2.584e-08
d
yr
n .1738177520230667 7.9197e-10 deg/d
Q 3.686594908637476 1.1198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3117  
   data-arc span      54732 days (149.85 yr)  
   first obs. used      1871-03-16  
   last obs. used      2021-01-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46463  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:18:07  

Additional Information
 Earth MOID = 1.67956 au 
 Jupiter MOID = 1.74847 au 
 T_jup = 3.175 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.62   n/a E2021B10 IRAS observations used: 17
diameter diameter 207.869 km 2.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.210 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pray, D. (2005) Minor Planet Bull. 32, 48-51.]
[Pilcher, F. (2017) Minor Planet Bull. 44, 249-251.]
geometric albedo albedo 0.044   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.743   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.26, mean=11.70, max.=19.19) deg.
U-B UB 0.464   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.26, mean=11.70, max.=19.19) deg.
Tholen spectral type spec_T G   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Cgh   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

106 Dione (A868 TA)          Discovered 1868-Oct-10 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A868 TA = A902 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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